Motor.



PATENTED AUG. 8, 1905. J. W. SMITH.

MOTOR. APPLICATION FILED JUNI: zo, 1904.

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No. 796,941.v y v I PATENTED AUG. 8,'1905.

' J. W. SMITH.

MOTOR..

APPLIOATION FILED JUNE zo, 1904.

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-PATENTED AUG. 8, 1905. J. W. SMITH.

MOTOR. APPLICATION FILED JUNE zo, 1904.

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UNITED STATES PATENT OFFICE.

MOTOR.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Application 'iiled .Tune 20. 1904. Serial No. 213,404.

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Be it known that I, JOHN W. SMITH, a citizen of the United States, residing at Pontiac, in the county of Livingston and State of Illinois, have invented a new and useful Motor, of which the following is a specification.

My invention relates to motors, and has for its objects to produce a comparatively inexpensive device of this character by which a minimum of motive power employed in operating the motor will be multiplied by the latter to maximum driving force and transmitted t the machinery or other apparatus to be driven.

To these ends the invention comprises the novel featuresof construction and combination of parts more fully hereinafter described.

In the accompanying drawings, Figure 1 is a rear perspective view of a motor embodying the invention. Fig. 2 is a front perspective view of said motor. Fig. 3 is a vertical transverse section therethrough taken on a line centrally of one of the hydraulic driving members. Fig. 4 is a detail view.

Referring to the drawings, 1 designates a base or support sustained by a suitable framework 2 and having arising therefrom a pair of spaced standards 3, disposed, respectively, at opposite ends of the motor.

Sustained at one end of the framework 2 is an electric or other motor 4, the shaft of which is journaled in suitable bearings and'is provided With a worm 5 in mesh with a wormgear 6, fixed upon the end of a pump-shaft 7, journaled for rotation in suitable bearings carried by the standards 3 and provided at intervals with cranked or eccentric portions 8, to which is connected for operation pump-rods 9, adapted to work in pump-cylinders for lifting water or other liquid through suitable pipes or ducts 11 from atank or reservoir 12, sustained beneath the base or platform 1.

Sustained by the base 1 is a plurality (pref- 4 erably three) of hydraulic cylinders 13, ar-

ranged at spaced intervals and each having mounted vtherein for vertical reciprocation a plunger-rod or piston 14, to the upper end of which is fixed a vertically-reciprocatory tubular driving member or cylinder 15, which in practice normally seats over and houses the cylinder 13, there being formed at the upper end of the driving member 15 a horizontal weight-receiving fiange or table 16. The tubular driving members have formed or otherwise provided upon their outer faces vertical racks 17 in mesh with gearpinions 18, ar-

ranged upon a connecting-shaft 19, journaled for rotation in bearings 20, carried by the standards 1 and adapted to have motion imparted thereto through the medium of the driving members 15 as the latter are reciprocated in the manner hereinafter explained. The pinions1-3 are loosely mounted upon the shaft and are adapted to be fixed thereto when rotated in one direction by means of suitable clutches 21, while the members 15 are provided with vertical radiating wings 22, constituting guide members, the edges of which engage and travel in suitable grooves or guideways 23, formed in fixed guide members or standards 24, attached to and arising vertically from the base 1 at appropriate points between the members 15, whereby the motions of the latter will be rendered steady and uniform. The ducts are connected in pairs with the cylinders 13 through the medium of couplingnozzles 25, which enter through the walls of the cylinders beneath the pistons 14, as seen more clearly in Fig. 3, attention being directed to the fact that as the shaft 7 is driven through the medium of the motor4 the pumps will be operated for forcing water under pressure into the cylinders and beneath the pistonsV 14, which are thereby forced vertically upward, carrying with them the members 15, and as the latter rise they serve through the rack-and-pinion connections to drive the shaft 19. It is to be further noted in this particular that there are a pair of the pumps 9 10 provided for each of the cylinders 13 and that each pair of pumps is adapted to stroke alternately, or, in other words, that during the upstroke of one of the pumps the other is upon the descent, whereby a continuous flow of water is entered into the cylinders.

Depending from the lower ends of the cylinders 13 are discharge pipes or ducts 26, adapted to discharge into the tank 12 and provided with rotary cut-off valves 27, fixed upon operating-shafts 28, mounted in suitable bearings 29, depending from the support 1, the shafts having fixed thereon pinions in mesh with racks 31, provided upon the lower ends of movable operating rods or members 32, sustained vertically by suitable bearings and each having thereon ak pair of spaced adjustable stops 33 34, adapted for engagement by fixed actuating arms or devices 35, carried by the driving members 15 and through suitable perforations in which the rods 32 extend. As the members 15 move upward under the inliuence of the hydraulic pressure in the manner heretofore explained the arms or members 35 will upon the limit of the upstroke of the members contact with the upper stops 34, thereby lifting the rods 32 and causing them through the medium of the rack-and-pinion connections to rotate the stub-shaft 28 for opening the valves 27 and permitting the water or other liquid to escape from the cylinders 13 through the discharge-pipes 26 into the tank 12, whereby the members 15 may under the iniiuence of the weights upon their upper ends descend by gravity.

Attention is directed to the fact that the members 15 are arranged to stroke successively/,whereby continuous motion is imparted to the shaft 19, and that as the members descend the clutches 21 will release the pinions 18 to permit the latter to run idly upon the shaft.

The connecting-shaft 19 is in connection by a suitable train of gearing 36 with a driveshaft 37, journaled for rotation in bearings 38, carried by the standards 1, there being fixed upon the drive-shaft a belt or other pulley 39, by which motion may be transmitted to the machinery or other apparatus to be driven.

From the foregoing it is apparent that I produce a comparatively simple inexpensive device admirably adapted for the attainment of the ends in view, it being understood that minor changes in the details of construction herein set forth may be resorted to without departing from the spirit of the invention.

Having thus described the invention, what is claimed isn 1. In a device of the class described, a plurality of cylinders, driven means for injecting fluid'into the lower ends of said cylinders, pistons movable in said cylinders, housings for said cylinders connected with the pistons, racks upon said housings, a shaft having loose pinions meshing with said racks, clutch means for locking said pinions upon the shaft, and means for exhausting I'iuid from the cylinders.

2. In a device of the class described, a platform, a plurality of cylinders supported upon said platform, a liquid-containing tank, pumps for forcing-liquid from said tank into the cylinders, one pair of said pumps being connected with each cylinder, a motor-driven shaft, eccentrics upon said shaft connected with the pistons of the pumps, said eccentrics being so disposed as to cause the pistons of each pair of pumps to stroke alternately, pistons movable in the cylinder under the irnpulse of the liquid injected into the latter, exhaust-openings at the lower ends of the cylinders, valves for said eXhaustopenings, means connected with the pistons for opening the exhaust-valves when the pistons reach the upward limit of their movement, means connected with the pistons for closing the exhaust-valves when the said pistons are restored by gravity to their initial position, and means for transmitting motion from the pistons to a shaft mounted for rotation.

In testimony that I claim the foregoing as my own I have hereto aiiixed my signature in the presence of two witnesses.

JOHN SMITH.

Vitnesses:

HARRY S. ALLEN, ORsAMUs S. WEST. 

